1. Remove the air filter.
2. Remove the spark plugs.
3. Disconnect the Hall sensor wiring connector.
4. With the help of a second mechanic, press the accelerator pedal to the stop.
5. Check the compression using a VAG 1381 or VAG 1763 tester. New engine compression: 10-15 bar, allowable wear: 7 bar. Permissible difference between cylinders: 3 bar.
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